What version of LANDesk are you running on? If your clients are on a different version please let us know that as well. Also, it would be helpful to have the version of .NET running on the core server.
I have the same problem but it is once a week and not always with the same user / Task / Host after the Service is restarted all is ok again for a week or less.
LANDesk Management Suite 8.7 SP6
.NET 1.1.4322 (.NET 2 is also installed)
I wrote a script checking the DB Status codes of the tasks and checkes if the task has timed out.
The only thing i don't know to let this script work is the status code of the task when the above error appears in the console.
So can anyone tell me what the status_Code the task gets in the DB when this happens?